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首页> 外文期刊>Environmental Monitoring and Assessment >Treatment of wastewater containing arsenic using Rhazya stricta as a new adsorbent
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Treatment of wastewater containing arsenic using Rhazya stricta as a new adsorbent

机译：以Rhazya stricta为新型吸附剂处理含砷废水

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摘要

The effective removal of heavy metals from aqueous wastes is among the most important issues for many industrialized countries. Removal of arsenic (As) from aqueous solutions was studied using Rhazia stricta biomass. The batch experiments are carried out to investigate the effect of the significant process parameters such as pH, contact time, solute concentration and adsorbent dose. The optimum pH required for maximum adsorption was found to be 5. The equilibrium data for the adsorption of As(Ⅴ) on R. stricta are tested with various adsorption isotherm models such as Langmuir, Freundlich, Tempkin and Generalized equation. Results indicate the following order to fit the isotherm: Langmuir (1 and 2)＞ Tempkin＞Generalized form＞Freundlich. A comparison of two kinetic models showed that our data fitted well to the Elovich model.
机译：对于许多工业化国家来说，从含水废物中有效去除重金属是最重要的问题。使用严格的生根生物质研究了从水溶液中去除砷（As）的方法。进行批处理实验以研究重要工艺参数（例如pH，接触时间，溶质浓度和吸附剂剂量）的影响。发现最大吸附所需的最佳pH为5。用Langmuir，Freundlich，Tempkin和Generalized方程等各种吸附等温线模型测试了As（Ⅴ）在R.stricta上的吸附平衡数据。结果表明，满足等温线的顺序如下：Langmuir（1和2）＞ Tempkin＞广义形式＞ Freundlich。两种动力学模型的比较表明，我们的数据非常适合Elovich模型。

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